The dimensions of a super king size Sleep+ Mattress are 183.5cm in width x 203cm in length, offering a generous sleep surface with a spacious, cloud-like feel. A super king is the largest size available in the Sleep+ Mattress collection, perfect for larger bedrooms and designed for a truly luxurious night’s rest.   

Ideal for individuals who enjoy extra space to stretch out and unwind, or couples with different sleep schedules, the super king size provides ample room to move freely while maintaining individual comfort, minimising partner disturbance.  

A super king Sleep+ Mattress is 31cm wider than a king size mattress, while sharing the same length of 203cm. With more space than a king size mattress, a super king size offers added comfort for couples or solo sleepers, with additional room for children or pets to share the bed.  

If you’re choosing between a super king size mattress and a king size mattress, read our advice page to help you decide which Sleep+ Mattress is right for you.   

• Reduced partner disturbance 

Partner disturbance is a common concern, particularly for light sleepers. If your partner moves around frequently, snores, or keeps a different sleep schedule, a super king size mattress provides the additional width needed to minimise disruption and promote deeper, more restful sleep. 

• Enhanced space and luxury 

A super king Sleep+ Mattress offers maximum space and a luxurious sleep experience, ideal for couples or larger bedrooms. When paired with a king size bed frame, the overall footprint will be slightly larger, providing a grander presence in the room. 

• Recommended room size 

We recommend a super king Sleep+ Mattress for bedrooms with a minimum size of approximately 3.8 × 4.5 metres. This allows ample clearance around the bed for movement, as well as space for essential furniture such as bedside tables.  

Yes. A super king Sleep+ Mattress is 183.5cm wide × 203cm long. The average doorway size is 80 × 200cm, reflecting the standard dimensions found in modern homes, so the mattress can typically be carried through on its side. 

Before delivery, it’s recommended to measure any narrow corridors, stairways, and doorways, and to move any furniture that may obstruct access. This helps minimise the risk of damage and ensures a smooth delivery process of your super king Sleep+ Mattress. 

To make the process even easier, you can arrange an access check prior to delivery. Our team will assess all access points to identify any obstacles and confirm your super king mattress can be safely delivered through any doorways, halls, or lifts. 

For personalised assistance, contact a showroom consultant at your nearest King Living Showroom to discuss delivery options.  

If you’re unable to visit a showroom, contact customer service or find more information about our access checks  found on our shipping and delivery page. 

If you’re searching for the best super king size mattress, the King Living Sleep+ Mattress offers lasting durability, customisable comfort, and superior support.  

At King Living, there are five super king Sleep+ Mattresses available. Explore your options here.  

• All super king Sleep+ Mattresses feature reversible, interchangeable layers that let you tailor firmness, softness, and temperature regulation to suit your preferences.  
• As well as being spacious, the super king size mattresses promotes airflow and wicks away moisture, creating a cooler, cleaner, and more comfortable sleep environment.  
• Whether you’re a side, front, or back sleeper, a spacious super king size Sleep+ Mattress adapts to your personal needs for consistently restorative rest.  

Find out why the Sleep+ modular mattress is the best mattress for you in our article.